The AUDUSD is trying to bounce of the ascending trend line that creates the top of the channel the pair has followed higher.   A pullback to support at 1.0450 could find buyers ahead of the FOMC and ECB announcements.  Post data, depending on the outcome, the cross could break above the top of the channel and make a run towards the resistance at 1.0630.  If the data disappoints the pair could test the bottom of the channel around 1.0280.

Sup   1.0450

Res   1.0560